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摘要： if concerned with 0, check the elements on the side first, the situation in the middle is handled Given an array nums of n integers where n > 1, retur 阅读全文

摘要： The API: int read4(char *buf) reads 4 characters at a time from a file. The return value is the actual number of characters read. For example, it retu 阅读全文

摘要： Task schedule https://leetcode.com/problems/task-scheduler/solution/ https://github.com/tongzhang1994/Facebook-Interview-Coding/blob/master/Task%20schedule%20with%20cool%20down%20time.java Given ... 阅读全文

摘要： The API: int read4(char *buf) reads 4 characters at a time from a file. The return value is the actual number of characters read. For example, it retu 阅读全文

摘要： Given two sparse matrices A and B, return the result of AB. You may assume that A's column number is equal to B's row number. Example: 阅读全文

摘要： Sparse vector Multiplication https://github.com/tongzhang1994/Facebook-Interview-Coding/blob/master/Sparce%20Matrix%20Multiplication.java public class Solution {//assume inputs are like {{2, 4}... 阅读全文

摘要： Print All Paths in a 2D Board public class Solution { private int m; private int n; public void printAllPath(char[][] grid) { int count=0; m=grid.length; if(m==0)... 阅读全文